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參數(shù)資料
| 型號： | KA5M0380R-YDTU |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SPS consist of high voltage power SenseFET and current mode PWM IC |
| 中文描述： | 12 A SWITCHING REGULATOR, 67 kHz SWITCHING FREQ-MAX, PZFM4 |
| 封裝： | TO-220F, 4 PIN |
| 文件頁數(shù)： | 1/14頁 |
| 文件大小： | 268K |
| 代理商： | KA5M0380R-YDTU |
2000 Fairchild Semiconductor International
www.fairchildsemi.com
Rev. .5.0
Features
Precision fixed operating frequency (100/67/50kHz)
Low start-up current(typ. 100uA)
Pulse by pulse current limiting
Over current protection
Over voltage protecton (Min. 25V)
Internal thermal shutdown function
Under voltage lockout
Internal high voltage sense FET
Auto-restart mode
Description
The SPS product family is specially designed for an off-line
SMPS with minimal external components. The SPS consist
of high voltage power SenseFET and current mode PWM
IC. Included PWM controller features integrated fixed fre-
quency oscillator, under voltage lock-out, leading edge
blanking, optimized gate turn-on/turn-off driver, thermal
shutdown protection, over voltage protection, and tempera-
ture compensated precision current sources for loopcompen-
sation and fault protection circuitry. Compared to discrete
MOSFET and PWM controller or RCC solution, a SPS can
reduce total component count, design size, weight and at the
same time increase efficiency, productivity, and system reli-
ability. It has a basic platform well suited for cost-effective
design in either a flyback converter or a forward converter.
TO-220F-4L
1. GND 2. DRAIN 3. V
CC
4. FB
Internal Block Diagram
V cc
FB
DRAIN
GND
SFET
5V
Vref
OSC
INT ERNAL
BIAS
GOOD
LOGIC
Q
S
R
_
+
2.5R
1R
9V
1 mA
5 uA
+
_
7.5V
THERMAL S/D
Q
S
R
POWER ON RESET
L.E.B
+
_
27V
UVLO
Rsens
KA5H0380R/KA5M0380R/KA5L0380R
SPS
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